Strange! I also wanna know what Power Sense really do....maybe dislabling Power Sense can also help to people with WHEA....But random restart....that's new issue
You may also be running into overheating issues. You might want to look closely at the temperatures that are occurring while you are watching your films. If the temperature is going up above ~90°C, you may want to lower the temperature setpoints in the cooling settings in BIOS Setup (Visual BIOS)...
For what I know, the "PowerSense" option, when active, should monitor the total power consumption of the NUC, if it is more than 65W, this option sends a PROCHOT# (Processor Hot) signal to the CPU that immediately starts to activate the Thermal Control Circuit (the same as if the processor has reached a maximum safe operating temperature). This is for safeguarding the external AC/DC adapter that shutdown itself, as a security measure, when it reach the 65W power limit.
I think that for our NUC it is best to leave it enabled.
I think it should be turned off only in case someone have installed something in the NUC that drain more power (total consumption more than 65W) and that at the same time is using an aftermarket external adapter...
No, I think you'd want it on *especially* if you're using an aftermarket power supply. My guess is the option got introduced precisely for those (if you buy a board only e.g.). The "power sense", as I understand it, will not monitor a certain power level (like 65W) but instead detect when the power supply goes into brown out, that is drops voltage because it's overloaded and then causes the CPU to throttle via #PROCHOT (which is a bi-directional signal line).
WIth Intel's supplied power supply you will probably not be able to overload it. The max. sustained power limit (PL1) for the i5 is 23W. Even if you add other peripherals (DRAM, USB etc.) I don't think you will even come near 65W.
I now have found also this NUC5i5MYBE Power Sensing Circuit ,it seems to monitor the power consumption of the NUC as I have said.
aybe we have to attend a gentle reply of N. Scott Pearson that can resolve this "mistery"....
Yes, that's a possibility as well...
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Thanks guys for the information provide. Fryrpc, please let us know if the issue persist with the BIOS version 0039, the BIOS version 0036 used to present that issue that was fixed on 0039, also keep in mind that your NUC’s RAM has to be DDR4-2133 1.2V.
In this document you can see the new fixes / features for Intel® NUC Kit NUC6i5SYH, BIOS version 0039
Just installed a new NUC6I5SYH here with:
- 8Gb RAM
- 256Gb M.2 SSD
- 1Tb WD RED Hard disk
This machine is for office use only, not running any heavy stuff.
The original BIOS was quite unstable and I was unable to boot 50% of the time.
Then I upgraded to 0039 and now I have this power-cut issue too.
I will check that in a few hours and will try to
- reset the bios
- disable power sense
- disable watchdog
I'll let you know if it's better
Please increase cooling on bios as well. Coolness is better than silence
I did not touch the cooling parameters.
If by default the cooling system is crashing the machine I would say there is something wrong
You are on BIOS 0039, that's good. I don't think that these random restarts are caused by any heating. This is something different. -> check Event Log regarding Warning and Error messages, maybe it's only SW-related issue...
I had a look but the only critical message found was that the system recovered from an unexpected shutdown which can be caused by a power cut or something similar. Nothing else. I just changed the bios param now, we will see it if it's better
And what brand of RAM do you use? Kingston ?
Kingston ValueRAM (1x, 8Go, DDR4-2133, SO-DIMM 260 pin)